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After deep searching of an incredibly large number of articles and reviews by our dynamic Artificial Intelligence & Machine Learning tools; and intensive refining, evaluation and screening by our specialist hi-technology gurus, the golden shortlist for the Best Scanner & Tester Accessories (2021) is finally compiled.

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In order to come up with the Best Scanner & Tester Accessories (2021), our smart platforms and gurus have taken many elements into account such as product usability, user-friendly features and give customer satisfaction, defect-free, conformity of standards, affordability, reliability, robustness, quality conformance to needs and guidlines, protection and safety, real customer satisfaction and many others. It is important to mention that each user has different needs so please consider the below list as a guide and not as a gospel. Nevertheless, in the list below you can absolutely find the overall best ones regardless of your needs.

Our smart platforms and skillful tech experts work hard to identify the best product choices. We believe that our review benchmarking can help you simplify your purchase decision and make a pick among the very Best Scanner & Tester Accessories (2021).

Best Scanner & Tester Accessories

Best Choice No. 1
KKmoon Metal Detector Headphone, Fine Quality Comfortable Metal Detector Headphone Universal Metal Tester Earphone Underground Scanner Accessories
  • ◕‿◕It is a practical and universal headphone for metal detector.
  • ◕‿◕Soft and comfortable, shielding the noise from outside.
  • ◕‿◕Compact and lightweight, easy to carry and use.
  • ◕‿◕Adjustable headband length to meet your needs.
  • ◕‿◕Standard port, not only for metal detectors, but also for mobile phones, PCs, etc.
SaleBest Choice No. 2
Autel MS309 Universal OBD2 Scanner Check Engine Fault Code Reader, Read Codes Clear Codes, View Freeze Frame Data, I/M Readiness Smog Check CAN Diagnostic Scan Tool
  • TURN OFF CHECK ENGINE LIGHT: Autel MS309 OBDII scanner is an easy-to-use plug-n-play check engine code reader that read and clear codes. This little code scanner retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes and displays DTC definitions on the TFT color screen. It can check engine related fault codes, easily find out what caused the check engine light comes on, turn off MIL light(Malfunction Indicator Light).
  • FREEZE FRAME DATA FOR ACCURATE DIAGNOSIS: This MS309 check engine code reader comes with viewing freeze frame function that enables you to retrieve data recorded in the ECU of the condition under which the fault occurs to figure out why the check engine light is on and cut down test drive cycle verification time. It includes important engine parameters such as RPM, vehicle speed, mass airflow, engine load, fuel pressure, short/long term fuel trim, engine coolant temperature and etc.
  • READINESS STATUS TO PASS SMOG CHECK: The Autel MS309 car diagnostic scanner tool comes with I/M Readiness function to check the operations of the Emission System on OBD2 compliant vehicles. It includes vehicle-specific number of monitors like misfire monitor, fuel system monitor, comprehensive components monitor, O2 sensors, EVAP system and etc, making this OBD2 scan tool an excellent scan tool to help get your vehicle ready to pass the annual smog check.
  • UNMATCHED COMPATIBILITY: Autel MS309 compact pocket code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. This OBD2 code scanner is compatible with all OBDII-Compliant vehicles, passenger cars or light trucks, post 1996 in US, post 2000 for EU-based and Asian cars.
  • RETRIEVE VEHICLE INFO: The Autel MS309 automotive OBD2 scanner enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car when you are buying a used car. The MS309 auto car scanner comes with LIFETIME FREE software updates and is backed by 45 Day Money Back and 12 Months US Seller . Purchase now and go fix something!
SaleBest Choice No. 3
Autel MS300 Universal OBD2 Scanner Car Code Reader, Turn Off Check Engine Light, Read & Erase Fault Codes, Check Emission Monitor Status CAN Vehicles Diagnostic Scan Tool
  • TURN OFF CHECK ENGINE LIGHT: MS300 check engine code reader can read, clear generic, manufacturer-specific and pending codes. It enables you to figure out why CEL is on like a pro and turn off check engine light instantly after proper repair.
  • MECHANIC APPROVED: MS300 OBD2 scanner works with most OBDII compliant(OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM, and CAN) sedans, SUVs and light trucks post-1996 for US cars, post-2000 for EU-based and Asian cars.
  • DIAGNOSE IN SECONDS: MS300 auto code reader features easy to use 2 button design to read, clear DTCs to help home mechanics locate car problems fast. With an intuitive interface and easy-to-read backlit screen, this diagnostic code reader is easy to use.
  • SMOG CHECK: MS300 car code reader retrieves I/M Readiness status to check emission-related systems like misfire monitor, fuel system monitor, comprehensive components monitor, O2 sensors, EVAP to help your vehicle ready pass the annual smog check.
  • NO BATTERY NEEDED: MS300 OBDII scan tool communicates with vehicles through standard 16-PIN OBD2 cable and it’s powered by vehicle directly- no battery needed. Please follow the correct usage order: Engine off- Plug MS300 in- Turn Ignition On.
SaleBest Choice No. 4
FOXWELL NT301 OBD2 Scanner Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light
  • 【Vehicle CEL Doctor】The NT301 obd2 scanner enables you to read DTCs, locate bad O2 sensors, access to emissions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle.
  • 【Accuracy & Streams】Live data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend.
  • 【Worthy to Own】Recommended by Mechanic Scotty Kilmer on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8″ color screen, Free Lifetime Update and 1-year seller assurance with EXCLUSIVE tech and service team.
  • 【Smog Check Helper】Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident emissions test.
  • 【Home Necessity】Open to global customers. No battery required, NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and one of the best gifts for Home and Autoshop Mechanics.
Best Choice No. 5
ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool-Black
  • Classic design, fast scan and clear trouble codes, even a beginner can use this unit to read the error code, find out what the problem is and perhaps fix it. Save money and time.
  • Works on MOST 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese.
  • Easily determines the cause of the check engine light. I/M monitor readiness test, turn off the MIL (check engine light) as well as view freeze frame data. Read hard (memory) / pending (intermittent) and historic codes and show definitions.
  • The AD310 scanner is well built with a large LCD display (128 x 64 pixel) that has white backlight and contrast adjustment, indicates test results directly. No need any Batteries or Charger, gets the power directly from the OBDII Data Link Connector in your vehicle.
  • It’s equipped with a 2. 5 feet long cable and made of a very thick flexible insulator. There are 4 buttons on AD310. The Up and Down button for scrolling the menu, the Enter and Exit button allow for navigation back and entering menu.
SaleBest Choice No. 6
OBD2 Scanner Code Reader Car Diagnostic Tool – OBD 2 Check Engine Light Scan Auto Computer Readers with Reset – OBD-II Automotive Tools Sensor ABS Car Accessories for Automobiles Diagnostics Scanners
  • FEATURES: Read or clear generic and manufacturer error codes, retrieve VIN (vehicle identification numbers) on 2002 or newer vehicles supporting mode 9, and reset the airbag light
  • INCREDIBLY SIMPLE: Plug it into the 16-pin connector underneath the steering wheel, turn the ignition, and you’re ready to go using only 2 simple buttons
  • COMPATIBILITY: Works with most US vehicles 1996 and newer that are OBDII and CAN compliant and supports all OBDII protocols as these are required in all US vehicles after this date
  • LCD SCREEN: Displays the meaning of over 3000 generic error code definitions in the database, it also clears trouble codes (DTC’s) and turns off the check engine light (MIL)
  • HANDHELD: At 2.75″ x 1″ x 4.25″ (26.25 inch cable) and only 8 ounces, it literally fits in the palm of your hand, plus it’s powered by your vehicles, Data Link Connector so you don’t even need batteries
SaleBest Choice No. 7
OBDScar OS601 OBD2 Scanner Universal Automotive Engine Fault Code Reader EOBD OBDII CAN Diagnostic Scan Tool
  • Universal Compatibility: Applicable to MOST US-based cars (made in 1996 or later), EU-based cars (made in 2001 or later), Asian cars (made in 2008 or later), and all OBD II/EOBD/CAN-compliant vehicles.
  • Smog Check: Clearly shows whether the emission-related systems are operating properly or ready for inspection and maintenance testing; turns off check engine light and resets monitors; views freeze frame data, read live PCM data stream, EVAP system test data, On-Board Monitor test data and display live O2 sensor test data.
  • Shows the code and what the code means directly. Able to retrieve generic (PO P2 P3 and UO) manufacturer specific (P1, P3, and U1) codes and pending codes, and vehicle information (VIN, CID and CVN). And can store the data you have viewed (DTCs, freeze Frame, live data, etc).
  • Supports all OBDII protocols, including ISO9141, KWP2000, J1850 PWM, J1850 VPW and CAN (Controller Area Network).
  • No battery needed, just plug it into the OBDII port and start diagnosis. Features a 2.5-foot flexible plug and a 7-button panel. Supports DTC look-up, and software upgrade. Supports multi-language display (English, German, Spanish, Dutch, Russian).
Best Choice No. 8
Foseal OBD2 Code Reader, OBD 2 Scanner Professional Enhanced Universal Car Automotive Check Engine Light Error Analyzer Auto CAN Vehicle Diagnostic Scan Tool for OBDII Protocol Cars Since 1996
  • Classic Handhold Design OBD2 Code Reader, plug and play, fast scan and clear trouble codes, very easy to use, even a beginner can use this unit to read the error code.
  • Check engine light. Run I/M monitor readiness test, Turn off check engine light, View freeze frame data and codes and show definitions, Monitor engine coolant temperature, etc.
  • Working on most 1996 US-Based cars SUVs,Light Trucks, 2000 EU-Based and Asian cars, vehicles with all OBD2 protocols CAN, ISO9141, J1850 VPW, J1850 PWM, KWP2000.
  • Built-in a large LCD display (128 x 64 pixel) with white backlight and contrast adjustment, from which you can read test results directly.
  • Package includes a Foseal handhold OBD Scanner with a 2.5 feet long cable and a friendly user manual; 18 months quality insurance; Any problem, welcome to contact us!
Best Choice No. 9
FOXWELL NT201 OBD2 Scanner Check Engine Light Car Code Reader Emission Analyzer Car Diagnostic Scanner for All Cars
  • 🎁【FREE CASE FOR FATHER’S DAY】Buy NT201, get FREE case bag. Select “Add both to cart” to automatically apply promo code SAM7M46M and you will get NT201 and one free case.
  • 【Top OBD2 Scanner】 Recommended by Ezvid Wiki and Onsite Associates Program. Car care and repair can be expensive, especially if you don’t know what the issue is.While you can take it to a mechanic who should have the right tool to diagnose the problem, having OBD2 scanner like FOXWELL NT201 can save you money and time by locating the issue yourself.
  • 【One-Click Smog Check】This car scanner with One-Click I/M Readiness key for quick state emissions readiness check and drive cycle verification,test results of your vehicle health status clearly and vividly in graphical way you’ll see if the car is ready to pass the emission test, without the hassle of driving around endlessly, or continuously coming back to the repair shop for retest.
  • 【Car Health Doctor】 The OBD reader contains all 10 modes of obd2 tests, quickly read and erase code,On-board monitor test (Mode 6), EVAP system,test,O2 sensor, turn off CEL(check engine light), reset monitor, retrieve VIN of your vehicle,live data in both graph and text forms, freeze frame data,built-in DTC look up library can be automatically displayed after reading.
  • 【Wide Coverage & Multiple Language】NT201 vehicle check engine code reader works on most gasoline domestic and import vehicle 1996 US-Based, 2000 EU-Based and Asian cars,included light-duty trucks (12v only), SUVs and mini-vans with standard OBDII/EOBD/JOBD&CAN protocol. Supports all OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN. 5 kinds of language avaliable :English, German, French, Spanish, Italian.
Best Choice No. 10
FOXWELL NT510 Elite Full Systems Scanner for BMW Automotive Obd2 Code Reader Bidirectional Diagnostic Scan Tool with SRS EPB SAS TPS Active Test Oil Reset Battery Registration
  • 🌞 ALL FEATURES IN YOUR HAND ➤ This bmw scanner is capable of reading and clearing trouble codes of all major systems, including engine, airbag, transmission, ABS, SAS, EPB, DISA, DSC, SZL, TPMS, DPF Regens, and supports body, chassis, powertrain and all control modules check. As a professional diagnostic scan tool for bmw full systems, nt510 elite codes reader is also a universal OBD code reader for checking engine light, reading and erasing codes on all brands cars’ OBD system.
  • 🌵 DEEP FUNCTIONS FOR BMW ➤ Control service interval reset, brake deactivation, ABS activation, battery registration, abs bleeding, reset oil light service/engage points for transfer case, idle speed adjustment, traction/throttle body adjustment, troubleshoot A/C, reset CBS condition-based service, turn up brightness on ur lights, activate alarm, dvd are just a few of special functions this bmw diagnostic scanner provides. One nt510elite code reader is enough for professional car diagnosis.
  • 🎁 BI-DIRECTIONAL/ACTIVE TEST OPERATION ➤ NT510 elite scanner for bmw allows you to temporarily activate or control a vehicle system or component for active test, provides accurate data results about troubleshoot and diagnostic problems. With this code reader, electronic components check, such as switches, sensors, relays, actuators are made a simple task. It also allows you to recalibrate, adapt or configure certain components after making repairs or replacements.
  • ⛄ HIGH EFFICIENCY, RELIABLE QUALITY, LONG SERVICE LIFE ➤ Ergonomic design and ruggedly built are for both shop and road tests, you’ll fall in love instantly with the obdii diagnostic tool. Perfect for diagnostic tests inside or outside of the car, and the clear menu makes it easy to operate. Comes with BMW software, and you could use the auto diagnostic tool directly out of the box(register need only before update). Playback and data print are also available.
  • 💯 COST-EFFECTIVE&ZERO-RISK PURCHASE ➤ The bmw scan tool is compatible with older 1987(20pin adapter needed) to 2021 BMW, Mini and Rolls Royce. Online free upgrade to obtain newly added parameters and functionality at your fingertips(Please DO choose Foxassist from foxwelltech.us). One-year warranty and no-worry return are offered. Just get one now, it will definitely surprise you beyond imagination! Any questions, contact us via Amazon messages to get a professional and quick response.

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